Ridley Blast 29" Acera

Name: Ridley Blast 29" Acera
Brand: Ridley

2017 MountainCross-country Manufacturer page

Fork travel: 100 mm
Wheels: 29″
Drivetrain: 3 × 9 22–40t / 11–34t
Gear range: 562%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

MD 165–177
LG 175–188
XL 185–198

Components

15 of 16 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Blast A9, 6061-T6 Alloy Not identified

Suspension

1 part

Fork
- SR Suntour

Drivetrain

6 parts

Cassette
- Shimano CS-HG200-9 9 speeds
CS-HG200
Chain
- KMC X9 9 speeds
Crankset
- Shimano Acera 40/30/22t
Front derailleur
- Shimano Acera
Rear derailleur
- Shimano Acera
Shifters
- Shimano Acera

Brakes

2 parts

Brake levers
- Shimano
Brakes
- Shimano BL-M396
BL-M396

Wheels and tires

2 parts

Cockpit and contact points

4 parts

Handlebar
- 4ZA
Saddle
- 4ZA
Seatpost
- 4ZA
Stem
- 4ZA

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size LG

Table

Geometry diagram unavailable

The drawing needs wheelbase, reach and stack, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Seat tube lengthmm	430	480	530
Head tube lengthmm	110	115	130
Head tube angle	70°	70°	71°
Seat tube angle	73.5°	73°	72.5°
Chainstay lengthmm	445	445	445
Bottom bracket dropmm	62	62	62
Bottom bracket heightmm	312	312	312

Not published by the manufacturer: Reach, Stack, Top tube length, Wheelbase, Front center, Standover height, Fork rake, Trail, Stack/reach ratio, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 22
Largest chainring: 40
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 18.8 in
Highest gear: 105.5 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Coil
Tire width: 2.2″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

100 mm

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2017
Sample: 555 bicycles with this information
Coverage: 87.8% of the class

Lowest gear

18.8 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2017
Sample: 607 bicycles with this information
Coverage: 96.0% of the class

Highest gear

105.5 gear inches

This value is above the central range for this class.

Cohort: Mountain / Cross-country Model year: 2017
Sample: 607 bicycles with this information
Coverage: 96.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.2 km/h
Highest gear: 40.4 km/h

Total gear range 562%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 18.8–105.5 gear inches
Class reference (p10–p90): 17.0–110.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2017
Lowest gear: 607 bicycles with this information, 96.0% of the class
Highest gear: 607 bicycles with this information, 96.0% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2017 builds

Differences across 2017 builds
Specification	This bicycle Ridley Blast 29" Acera	Ridley Blast 27.5" Acera	Ridley Blast 27.5" Deore	Ridley Blast 27.5" SLX Deore	Ridley Blast 29" Deore	Ridley Blast 29" SLX Deore
Drivetrain
Rear sprockets	9	9	10	10	10	10
Largest sprocket	34	34	36	36	36	36
Lowest gear	18.8 in	17.8 in	16.8 in	16.8 in	17.7 in	17.7 in
Highest gear	105.5 in	100.0 in	100.0 in	100.0 in	105.5 in	105.5 in
Brakes
Brake type	Hydraulic disc	Hydraulic disc	Hydraulic disc	Mechanical disc	Hydraulic disc	Mechanical disc
Other specifications
Fork spring	Coil	Coil	Not informed	Not informed	Not informed	Not informed
Wheel size	29″	27.5″	27.5″	27.5″	29″	29″